Replacing Cisco ASR 9001 Router Components
The router is equipped as ordered and is ready for installation and startup when it is shipped. As network requirements change, you may need to upgrade the system by adding or changing components. This chapter describes how to maintain router components.
Procedures for maintaining the router are described in these sections:
Prerequisites and Preparation
Before you perform any of the procedures in this chapter, be sure that you:
Field Replaceable Units
These components are field replaceable units (FRUs):
- Power modules
- Fan tray
- Modular port adapters
- Gigabit Ethernet small form-factor pluggable transceiver modules (SFPs)
- 10-Gigabit Ethernet small form-factor pluggable transceiver modules (XFPs)
Online Insertion and Removal
Some field-replaceable units (FRUs) for the Cisco ASR 9000 Series Routers can be removed and replaced with the power on and the system operating. This facility is known as online insertion and removal (OIR). Unless otherwise noted, the maintenance tasks described in this chapter can be performed while the router remains powered on.
Powering Off the Router
Do not turn off the switch on the power tray to remove individual power modules. Power modules support OIR, so they can be removed and replaced with the power on and the system operating.
If it becomes necessary to turn all power off to the router, follow these steps:
Step 1 Set the power switch on the chassis to the off (0) position.
Step 2 Power off all circuit breakers for the source power lines connected to the power trays.
Step 3 Verify that the Pwr OK indicator on each power module is off.
Step 4 Verify that the OK indicator on the fan tray is off.
Removing and Replacing the Fan Tray
Note Fan tray OIR (Online Insertion and Removal) is supported from Cisco IOS XR Release 4.2.3.
The fan tray can be removed and replaced while the router is operating. When the router is being operated, it is recommended to change the fans within the following times to ensure that the router does not overheat:
- 3.1 minutes at 25°C operating temperature
- 2 minutes at 40°C operating temperature
- 42 seconds at 55°C operating temperature
Warning The fans might still be turning when you remove the fan assembly from the chassis. Keep fingers, screwdrivers, and other objects away from the openings in the fan assembly’s housing. Statement 263
Be sure that the fans have stopped running before removing the fan tray. The fans can take from 3 to 5 seconds to completely stop running after disengaging the fan tray latch. Handling the fan tray before the fans have stopped running could cause fingertip injury.
Removing and Replacing a Fan Tray
The fan tray weighs approximately 2.6 pounds (1.2 kg). Use both hands when handling the fan tray.
To remove and replace a fan tray from the chassis:
Step 1 Loosen the captive screw(s) that secure the fan tray.
Step 2 Use the handle on the fan tray front panel to pull the fan tray halfway out of the module bay (Figure 5-1).
Step 3 Slide out the fan tray completely from the chassis while supporting it with your other hand.
Step 4 To reinstall the fan tray, lift the fan tray (with two hands) and slide it halfway into the module bay (Figure 5-1).
Step 5 Slowly push the fan tray into the chassis until it mates with the backplane connector at the back of the module bay.
To prevent damage to the connectors, do not use excessive force when inserting the fan tray into the chassis.
Step 6 Tighten the captive screw(s) on the fan tray to a torque of 10 +/–1 in-lb to secure it to the chassis.
Step 7 Verify that the (green) OK status indicator on the front of the fan tray goes on. If the OK indicator does not light, see Troubleshooting the Cooling Subsystem.
Figure 5-1 Removing or Installing the Fan Tray on the Cisco ASR 9010 Router Chassis
Removing and Replacing the Air Filter
The Cisco ASR 9001 Series Router, when used with the air plenum, has a serviceable air filter (Cisco PID ASR-9001-PLNMFLTR=) that is accessible from the top of the of the air filter assembly (Figure 5-2). The air filter removes dust from the room air drawn into the chassis by the fan trays.
Regularly check the air filter at least every three months. If used in a dusty environment, check the air filter once a month. Replace it if it appears excessively dirty or damaged. Failure to replace a compromised air filter can result in insufficient air circulation through the chassis.
Note To comply with Telecordia GR-63-Core standard air filter requirements for NEBS deployments, the air filter must be replaced.
Note The air filter can be removed from the air plenum assembly without removing the cables or the fan tray.
To replace the air filter, follow these steps:
Step 1 Loosen the two captive screws on the air filter cover and remove it from the chassis.
Step 2 Grasp the pull tab in the center of the air filter, and slide it out from the slot.
Figure 5-2 Replacing the Air Filter
Air filter cover
Two captive screws
Step 3 Install the replacement air filter.
Note Verify the air flow direction when installing the new air filter. An air flow direction arrow is stamped on the air filter frame and should be pointing towards the chassis and be visible when installed in the air filter cover.
a. Slide the new air filter into the slot.
b. Tighten the two captive screws on the front of the air filter cover.
Removing and Replacing AC or DC Power System Components
This section contains removal and replacement procedures for the AC and DC power systems used in the Cisco ASR 9001 Series Router.
Power Module Replacement Guidelines
The Cisco ASR 9001 Series Router support online insertion and removal (OIR) for power modules. If you are replacing a redundant power module, you can remove and install the power module while the system remains powered on without causing an electrical hazard or damage to the system. This feature enables you to replace a power module while the system maintains all routing information and ensures session preservation.
However, to maintain operational redundancy and proper cooling, and to meet EMI compliance standards, you must have at least one working power module installed. When you remove a failed power module with the router in operation, perform the replacement as soon as possible. Make sure you have the replacement power module ready before beginning the removal and installation procedure.
Removing and Replacing an AC or DC Power Module
This section contains the procedure to remove and replace an AC or DC power module from the chassis.
Note It is not necessary to turn off the switch on the unit to remove individual power modules. Power modules support OIR, so they can be removed and replaced with the power on and the system operating.
Removing an AC or DC Power Module
To remove an AC or DC power module from the chassis (Figure 5-3):
Step 1 Disconnect the power cabling from the power module before removing it from the chassis.
Step 2 Pull the keying lever towards the left side to unlock the module from the chassis.
Step 3 Slide the power module out of its bay while supporting it with your other hand.
Figure 5-3 Removing or Installing an AC or DC Power Module (AC power shown)
Installing an AC or DC Power Module
To install an AC or DC power module (Figure 5-3):
Step 1 Slide the power module into the open bay until it mates with its backplane connector. Make sure that keying lever locks with the chassis.
Step 2 Attach the power cabling to the power module.
Step 3 Verify that the OK (green) power indicator on the front of the power module comes ON. If the indicator does not light up, see Troubleshooting the Power Subsystem.
Removing a Chassis from the Equipment Rack
Use this procedure to remove the chassis and its components from the equipment rack:
You must use two peopl
e to remove the chassis from the equipment rack safely. An empty chassis can weigh up to approximately 24.69 pounds (11.2 kg).
Step 1 Power off the router (see Powering Off the Router).
Step 2 Power off the circuit breakers to the power supplies.
Step 3 Disconnect the power from the power modules on the front of the chassis:
Step 4 Disconnect RP cables connected to the console port, auxiliary port, or either of the management Ethernet ports.
Be sure to label each of the RP cables before you disconnect the cables.
Step 5 Disconnect the line card interface cables.
Step 6 Disconnect the supplemental bonding and grounding connection from the chassis (see Supplemental Bonding and Grounding Connections).
Step 7 Remove the chassis from the rack.
a. Remove the screws that attach the chassis rack mount flanges and the side rack mount brackets to the rack posts.
b. Carefully lift the chassis out of the rack and set it aside.
Packing a Chassis for Shipment
Use the packaging that came with the replacement chassis to repack and ship the chassis being replaced.